Home / 7,488.70-10,334.40-4,131.73

Finding the Fourth Proportional to 7,488.70, 10,334.40 and 4,131.73

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Solution

The fourth proportional to 7,488.70, 10,334.40 and 4,131.73 is: 5,701.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,488.70 : 10,334.40 = 4,131.73 : x
  2. Step 2: Convert to fraction form
    7,488.70/10,334.40 = 4,131.73/x
  3. Step 3: Cross multiply
    7,488.70x = 10,334.40 × 4,131.73
  4. Step 4: Simplify right side
    7,488.70x = 42,698,950.51
  5. Step 5: Solve for x
    x = 42,698,950.51/7,488.70
  6. Step 6: Final answer
    x = 5,701.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.